commit 2b148f392b2bfeba76d3e6d9607c3bd072350e8c
author Paolo Bonzini <pbonzini@redhat.com> Thu Mar 01 17:36:18 2018 +0100
committer Kevin Wolf <kwolf@redhat.com> Fri Mar 09 15:17:47 2018 +0100
tree a28af16d3aef4b004a257488e7503ca31f6bc51c
parent 9fb4dfc570ce3b013830321b8b91ae2ea991d768

block: convert bdrv_invalidate_cache callback to coroutine_fn

QED's bdrv_invalidate_cache implementation would like to reuse functions
that acquire/release the metadata locks.  Call it from coroutine context
to simplify the logic.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1516279431-30424-6-git-send-email-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

block/nfs.c

diff --git a/block/nfs.c b/block/nfs.c
index 1d82ff5..7433d25 100644
--- a/block/nfs.c
+++ b/block/nfs.c
@@ -876,8 +876,8 @@
 }
 
 #ifdef LIBNFS_FEATURE_PAGECACHE
-static void nfs_invalidate_cache(BlockDriverState *bs,
-                                 Error **errp)
+static void coroutine_fn nfs_co_invalidate_cache(BlockDriverState *bs,
+                                                 Error **errp)
 {
     NFSClient *client = bs->opaque;
     nfs_pagecache_invalidate(client->context, client->fh);
@@ -910,7 +910,7 @@
     .bdrv_refresh_filename          = nfs_refresh_filename,
 
 #ifdef LIBNFS_FEATURE_PAGECACHE
-    .bdrv_invalidate_cache          = nfs_invalidate_cache,
+    .bdrv_co_invalidate_cache       = nfs_co_invalidate_cache,
 #endif
 };